Question

Which of the following is not controlled by a negative feedback loop?

A) Blood glucose levels
B) Body temperature
C) Menstrual cycle
D) Calcium regulation

Answer 1

C) Menstrual Cycle

Step-by-step explanation:

I am not sure what that has to do with mathematics.

A) B) and D) are examples of levels of substances in the blood and/or tissue in our bodies.

there are regulating units in our bodies that control the release of other substances (like hormones) that then either increase or decrease the first substances - all based on the measured levels.

they are like a thermostat controlled heater or air-conditioner in our homes : if the temperature get too low or too high, the thermostat triggers a dedicated unit to counteract the actual temperature.

the menstrual cycle is something else. it is more like a timer function (like turning on a light every day at a specific time - if it is actually needed or not).

it is triggered by a timing event in the body, and not to correct the level of a substance in the body.

Answer 2

The menstrual cycle is not controlled by a negative feedback loop.

Step-by-step explanation:

Out of the given options, the process that is not controlled by a negative feedback loop is the Menstrual cycle. The menstrual cycle is regulated by hormones such as estrogen and progesterone, and it follows a positive feedback loop. During the menstrual cycle, the release of hormones triggers the release of an egg, which further stimulates the production of more hormones.